subnet.im

AS214762Sebastian Stefanek trading as MatHost.eu

PolandRegistryRIPE NCCTypeContent

As of 11th November 2026, AS214762 (Sebastian Stefanek trading as MatHost.eu), a content network registered in Poland with RIPE NCC, originates 3 IPv4 prefixes covering 768 addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 45,669th-largest of the 80,743 networks we see originating IPv4, and the 975th-largest of 2,109 in Poland. It is seen behind 11 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS6204 (INTERKVM HOST SRL), and in front of 30 downstream networks. 75% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

3

IPv6 prefixes

9

IPv4 addresses

768

IPv6 /64s

304M

Upstream graph

The networks AS214762 is seen behind, one and two hops out, drawn from real AS paths.

AS214762Toward the internet core
Upstream graph for AS214762: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS214762Sebastian Stefane…This networkAS6204INTERKVM HOST SRLAS6939Hurricane Electri…AS50263A-Systems Sp. z o…AS62403PletX GmbHAS214757Jakub KrsaAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS20130Depaul UniversityAS132337AxclusiveAS6453TATA Communicatio…AS49581Ferdinand Zink tr…AS49127Asimo Networks B.…

Networks observed one and two hops upstream of AS214762 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

102

adjacent networks

Upstreams
1111%
Peers
6160%
Downstreams
3029%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS214762
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,68564
AS6204INTERKVM HOST SRLROPeer62996
AS214757Jakub KrsaCZPeer27747
AS62403PletX GmbHDEPeer19175
AS50263A-Systems Sp. z o.o.PLPeer15021
AS205941Lungu Stefan GabrielROPeer14489
AS24940Hetzner Online GmbHDEPeer802
AS32590Valve CorporationUSPeer772
AS24482SG.GSSGPeer665
AS15694Atman Sp. z o.o.PLPeer55

Prefixes

The largest blocks AS214762 originates, widest first.

Largest prefixes originated by AS214762
PrefixAddressesVisibility
44.30.200.0/2425675/76
89.144.32.0/2425676/76
145.79.141.0/2425675/76
2a13:c8c4:1000::/36268M × /6462/63
2a0f:b240:5c00::/4016.8M × /6462/63
2a13:c8c4:ff00::/4016.8M × /6462/63
2a05:dfc1:1410::/441M × /6462/63
2a07:54c1:c000::/441M × /6462/63
2a06:1283:8904::/4865.5k × /6462/63
2a06:1283:890c::/4865.5k × /6462/63

Routing health

How AS214762's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid75.0%9
  • Invalid0.0%0
  • No ROA25.0%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%12
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

IPv6 — 9 prefixes

  • /36268M × /6411.1%1
  • /4016.8M × /6422.2%2
  • /441M × /6422.2%2
  • /4865.5k × /6444.4%4

Recent changes

Announcements that started or stopped since 12th Oct 2026.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.